Question

solve it please it's urgent​

Answer 1

Answer:

The first answer will be 450 cm²

As, A=½bh

or, ½×20×45=450

The second answer will be 15

As,A=½bh

or, 30=½×10×h

or, h=15

Answer 2

Answer:

i)450cm² ii)6cm

Step-by-step explanation:

i)1/2×b×h

⇒1/2×20×45

⇒10×45

⇒450

∴AREA OF TRIANGLE=450cm²

ii)1/2×b×h=30

⇒1/2×10×h=30

⇒5×h=30

⇒h=30/5

⇒h=6

∴HEIGHT=6cm