Question

Parallelogram calculations

Answer 1

#1

Area

• Length×Breadth
• 5(2.5)
• 12.5mi²

#2

Area

• 1/2BH
• 1/2(16)(5)
• 8(5)
• 40ft²

#3

Area

• BH
• 24(6)
• 144cm²

#4

Area

• BH
• 7(4)
• 28m²

Answer 2

Part (b)

Formula: Area of a rectangle = width × length

Substitution: Area = 2.5 mi × 5 mi

Answer: Area = 12.5 mi²

Part (c)

Formula: Area of a triangle = 1/2 × base × height

Substitution: Area = 1/2 × (12 ft + 4 ft) × 5 ft

Answer: Area = 40 ft²

Part (e)

Formula: Area of a parallelogram = base × height

Substitution: Area = 24 cm × 6 cm

Answer: Area = 144 cm²

Part (f)

Formula: Area of a parallelogram = base × height

Substitution: Area = 7 m × 4 m

Answer: Area = 28 m²