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Find the height of a trapezium below with are 90cm and parallel sides 6 and 19.

1 Answer

3 votes

Answer:

7.2 cm

Explanation:

The height of the trapezium can be found by making use of the area formula with known values filled in.

__

solve for height

The area of a trapezium is given by ...

A = 1/2(b1 +b2)h . . . . b1, b2 are the parallel sides, h is the height

Using the given values, we have ...

90 cm² = 1/2(6 cm +19 cm)h . . . . . . use the known values

(90 cm²)/(12.5 cm) = h = 7.2 cm . . . . divide by the coefficient of h

The height of the trapezium is 7.2 cm.

User Kristy Welsh
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