Answer:
The heigh of the triangle is 10cm
Step-by-step explanation:
The area of a triangle is given by the formula A=1/2bh where
A = the area of the triangle,
b = the length of the base, and
h = the height of the triangle.
To find the height when
the
Area of the triangle, A =45cm2,
base of the triangle, = 9 cm long.
Using the formula, A = 1/2 × b × h
45 = 1/2 × 9 × h
Cross multiplying
2×45 = 1×9×h
90 = 9h
h = 90/9 = 10cm
