Question

(2) The triangle has an area of 7 & 7/8 cm2 and a base of 5 & 1/4 cm. What is the

length of h?*

Answer 1

H = 3cm

Explanation:

sorry i just know the answer

Answer 2

h = 3 cm

Explanation:

The area (A) of a triangle is calculated as

A =
`(1)/(2)` bh ( b is the base and h the height )

Here A = 7
`(7)/(8)` =
`(63)/(8)` ← expressed as an improper fraction

and b = 5
`(1)/(4)` =
`(21)/(4)`, thus

`(1)/(2)` ×
`(21)/(4)` × h =
`(63)/(8)`, that is

`(21)/(8)` h =
`(63)/(8)`

Multiply both sides by 8 to clear the fractions

21h = 63 ( divide both sides by 21 )

h = 3