b) A trapezium has an
area of 80 cm2. Find
the sum of it's two
parallel sides of its
height is 8cm.
Answers
Answered by
1
Answer:
The sum of the two parallel sidez is 20cm.
Step-by-step explanation:
Area of trapezium = 1/2 × h(a+b)
= 1/2×8(a+b) = 80
4(a+b) =80
a+b =80/4 = 20cm
Answered by
1
Answer:
area= 80cm²
½ × sum of its parallel sides × h = 80cm²
½ × sum of its parallel sides × 8 = 80cm²
Sum of its parallel sides = 80 ÷ 8 × 2
Sum of its parallel sides = 20cm
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