ISO trapezium

Calculate area of isosceles trapezoid with base 95 long, leg 27 long and with the angle between the base and leg 70 degrees.

Correct answer:

S =  2176.02

Step-by-step explanation:

$$\begin{gathered} a=95 \\ v=27\cdot \sin 70^{\circ }=25.37 \\ c=a-2a\cos 70^{\circ }=30.02 \\ S={\displaystyle \frac{a+c}{2}}v={\displaystyle \frac{95+30.02}{2}}\cdot 25.37=2176.02 \end{gathered}$$

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