1.

Find the area of triangles whose base is 30cm and perpendicular height is 8cm.​

Answer»

Area of triangle = 120 cm^2

Step-by-step explanation:

(hypo {)}^{2} = ( {height)}^{2} + ( {base)}^{2} \\ \\ = {8}^{2} + {30}^{2} \\ = 64 + 900 \\ = 964 \\ \\ area \: of \: triangle = \frac{1}{2} \times b \times h \\ \\ = \frac{1}{2} \times 30 \times 8 \\ \\ = 120 {cm}^{2}

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