mination and School Inspection Authority) The area of a triangle is 299cm2. Its height is 23 cm. Find its base and choose the correct answer. (2 marks) A: 13 cm B: 26 cm C: 26 m D: 13 cm2 a) How many vertices does a cube have? (1 mark) b) How many edges are there in a cuboid? (1 mark) The perimeter of a square whose area is 576 m2 is: (2 marks) A: 24 m B: 48 m C: 96 m D: 144 m A rectangular field measuring 100 m by 50 m was drawn on a scale of 1:1000. The drawing area was: (2 marks) A: 50 cm2 B: 50 m2 C: 5 m2 D: 5 cm2

Question

Asked on June 29, 2026Chemistry

This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.

Accepted Answer · 2026-06-29T17:16:42.409Z

21) Step 1: Write the formula for the area of a triangle. Area = (1/2) × base × height Step 2: Substitute the given values into the formula. 299 cm² = (1/2) × base × 23 cm Step 3: Solve for the base. 299 cm² = (23/2) cm × base base = (299 cm² × 2) / 23 cm base = 598 cm² / 23 cm base = 26 cm The correct answer is B: 26 cm. 22) a) A cube has 8 vertices. b) A cuboid has 12 edges. 23) Step 1: Find the side length of the square using its area. Area of a square = side² 576 m² = side² side = √(576 m²) side = 24 m Step 2: Calculate the perimeter of the square. Perimeter of a square = 4 × side Perimeter = 4 × 24 m Perimeter = 96 m The correct answer is C: 96 m. 24) Step 1: Convert the actual dimensions to centimeters and then apply the scale to find the drawing dimensions. Actual length = 100 m = 100 × 100 cm = 10000 cm Actual width = 50 m = 50 × 100 cm = 5000 cm Drawing length = Actual length / Scale factor = 10000 cm / 1000 = 10 cm Drawing width = Actual width / Scale factor = 5000 cm / 1000 = 5 cm Step 2: Calculate the area of the drawing. Drawing area = Drawing length × Drawing width Drawing area = 10 cm × 5 cm Drawing area = 50 cm² The correct answer is A: 50 cm². Send me the next one 📸

Accepted Answer · 2026-06-29T17:16:42.409Z

21) Step 1: Write the formula for the area of a triangle. Area = (1/2) × base × height Step 2: Substitute the given values into the formula. 299 cm² = (1/2) × base × 23 cm Step 3: Solve for the base. 299 cm² = (23/2) cm × base base = (299 cm² × 2) / 23 cm base = 598 cm² / 23 cm base = 26 cm The correct answer is B: 26 cm. 22) a) A cube has 8 vertices. b) A cuboid has 12 edges. 23) Step 1: Find the side length of the square using its area. Area of a square = side² 576 m² = side² side = √(576 m²) side = 24 m Step 2: Calculate the perimeter of the square. Perimeter of a square = 4 × side Perimeter = 4 × 24 m Perimeter = 96 m The correct answer is C: 96 m. 24) Step 1: Convert the actual dimensions to centimeters and then apply the scale to find the drawing dimensions. Actual length = 100 m = 100 × 100 cm = 10000 cm Actual width = 50 m = 50 × 100 cm = 5000 cm Drawing length = Actual length / Scale factor = 10000 cm / 1000 = 10 cm Drawing width = Actual width / Scale factor = 5000 cm / 1000 = 5 cm Step 2: Calculate the area of the drawing. Drawing area = Drawing length × Drawing width Drawing area = 10 cm × 5 cm Drawing area = 50 cm² The correct answer is A: 50 cm². Send me the next one 📸

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