Question

Find area of right triangle:- B = 15 , and H = 25cm.​

Answer 1

Answer:

187.5 cm^2

Step-by-step explanation:

we know that the area of a triangle is 1/2 * base * height.

so, substituting the values-

= 1/2 *15 * 25

= 375/2

= 187.5

therefore, the area of the triangle is 187.5 cm^2

hope this helps!

Answer 2

Base =15cm, Hypotenuse =25 cm

Height = $\sqrt{{(Hypotenuse)}^{2} +{Base}^{2}}$

Area of right △= $\frac{1}{2}$×base×altitute

Using Pythagoras theorems,

Altitute =$\sqrt{(AC)^{2} −(BC)^{2}}$

$= \sqrt{ ({25})^{2} - ( {15})^{2} } = \sqrt{625 - 225}$

$= \sqrt{400} = 20 \: cm$

Therefore, area of right triangle

Area of right △= $\frac{1}{2}$×base×altitute

Area of △= $\frac{1}{2}$ ×15×20=[/tex]

Area of △= $\frac{1}{2}$ ×15×2[/tex]

$=150 \: {cm}^{2}$