Question

4. Complete the following table.
Base l Heigh l Area of
l l triangle
a) 20.75 cm l l 257.20 cm
6.4 m l 225 cm. l
c)38 cm l l 494 cm²
d) 15 cm l l 285 cm²​
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Answer 1

Answer:

a)B=20.75cm

H=?

area of triangle =257.20cm²

area of triangle =257.20cm

1/2×b×h=257.20cm

1/2×20.75×h=257.20cm

20.75×h=257.20×2cm

h=514.40/20.75cm

h=~24.79cm

b)B=6.4cm

H=225cm

AREA=?

area of triangle

= 1/2×b×hcm²

=1/2×6.4×225cm²

=3.2×225cm²

=720cm²

c)B=38cm

H=?

AREA=494cm²

area of triangle=494cm

1/2×b×h=494cm

1/2×38×h=494cm

h=494×2/38cm

h=494_19cm

h=26cm

d)B=15cm

H=?

AREA=285cm²

area of triangle =285cm

1/2×b×h=285cm

1/2×15×h=285cm

h=285×2/15cm

h=570/15cm

h=38cm

Step-by-step explanation:

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