Jenny wants to purchase a shirt that normally sells for $25. If Jenny has a coupon for 20% off her purchase, what price will Jenny have to pay for the shirt?
Jenny will have to pay $
for the shirt.
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Ответ:

jasminecoronetti44

16.11.2021

Mathematics

The area of the triangle is 24 $\text{cm}^{2}$ .

Step-by-step explanation:

We are given that the length of the base of a right-angle triangle ABC is 6 cm and the length of the hypotenuse is 10 cm.

And we have to find the area of the triangle.

As we know that the area of the triangle is given by the following formula;

Area of the triangle = $\frac{1}{2}\times \text{Base} \times \text{Height}$

Firstly, we will find the height (perpendicular) of the triangle ABC bu using the Pythagoras Theorem.

$\text{Hypotenuse}^{2} =\text{Perpendicular}^{2} +\text{Base}^{2}$

$\text{10}^{2} =\text{Perpendicular}^{2} +\text{6}^{2}$

$100=\text{Perpendicular}^{2} +36$

$\text{Perpendicular}^{2} =100-36$

$\text{Perpendicular}^{2} =64$

$\text{Perpendicular} =\sqrt{64}$ = 8 cm.

Now, the area of the triangle = $\frac{1}{2}\times \text{Base} \times \text{Height}$

= $\frac{1}{2}\times \text{6} \times \text{8}$

= 24 $\text{cm}^{2}$

Hence, the area of the triangle is 24 $\text{cm}^{2}$ .

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Jenny wants to purchase a shirt that normally sells for $25. If Jenny has a coupon for 20% off her purchase, what price will Jenny have to pay for the shirt? Jenny will have to pay $ for the shirt. Help me