Question

Plz tell its full step by step 'solution'.
20th a) and 21st​

Answer 1

Answer:

Area=720 cm² and altitude on longest side is 17.56cm

Step-by-step explanation:

Given parameter =180cm and two sides as 80,18cm

then we find the third side =180-18-80=82cm

using the Pythagoras theorem we can check it is a right angle triangle

hence

area =A=(1/2)*base*height

Now we will utilize this area to find the altitude on longest side that is hypotenuses taken as base .

please check solution pic for clarity

for 21 Question please ask in new Query thank you