Sarthaks Test
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Find the missing values: 

BaseHeightArea of triangle
15 cm87 cm2 
31.4 mm1256 mm2
22 cm170.5 cm2 

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Best answer

We know that the area of triangle 

= 1/2 x base x height

In first row,

base = 15 cm and area = 87 cm2

87 =1/2 x 15 x height

⇒ height =(87 x 2)/15

= 11.6 cm

In second row, height = 31.4 mm and area = 1256 mm2

\ 1256 = 1/2 x base x 31.4

⇒ base = (1256 x 2)/31.4

=80 mm

In third row,

base = 22 cm and area = 170.5 cm2

170.5 = 1/2 x 22 x height

⇒ height = (170.5 x 2) /22

=15.5 cm

Thus, the missing values are:

BaseHeightArea of triangle
15 cm11.6cm87 cm2 
80 mm31.4 mm1256 mm2
22 cm15.5cm170.5 cm2 

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