Question

Base= 22cm Area of triangle= 1/2*b*h What is height

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Answer 1

Answer:

(1)

Base b=15cm For triangle,

h=? Area =

2

1

×base×heightA

A=87cm

2

A=

2

1

b×h=87cm

2

2

1

×15×h=87

h=

5

58

cm=11.6 cm,h=11.6 cm

(2) b=?

h=31.4 mm

A=1256 mm

2

=

2

1

×b×h

1256=

2

1

×b×31.4

∴b=80 mm

(3) b=22 cm

h=?

A=1705cm

2

=

2

1

×22×h

∴h=15.5cm

solution