Question

The base of a parallelogram is 7x while it's altitude is 5x. Find the measure of the base and altitude if the area of the parallelogram is 617.4 cm​

Answer 1

7x × 5x = 617.4

35x^2 = 617.4

x^2 = 617.4 / 35

x^2 = 17.64

× = 4.2

7x = 7×4.2 = 29.4

5x = 5×4.2 = 21

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Answer 2

X = 4.2

base = 29.4 cm

altitude = 21 cm

Step-by-step explanation:

• area of parallelogram = b × h
• 7x × 5x = 617.4
• 35xsquare = 617.4
• X square = 617.4 ÷ 35
• X square = 17.64
• X = 4.2
• base ---- 7x --- 7 × 4.2 = 29.4 cm
• altitude --- 5x --- 5 × 4.2 = 21 cm

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