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3 years ago

What type of triangle is a 45-45-90 right triangle?

Mathematics

2 answers:

sp2606 [1]3 years ago

7 0

Answer:

I believe it's isosceles

Step-by-step explanation:

timofeeve [1]3 years ago

4 0

Yep, that's a right triangle! The dead giveaway is the 90 degree point.

Hope this helps!

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2 years ago

An isosceles trapezoid has base angles of 45° and bases of lengths 8 and 14. The area of the trapezoid is

Mice21 [21]

Answer:

Option A is correct.

Step-by-step explanation:

Given an isosceles trapezoid has base angles of 45° and bases of lengths 8 and 14. we have to find the area of isosceles trapezoid.

An isosceles trapezoid has base angles of 45° and bases of lengths 8 and 14.

From the figure attached , we can see an isosceles trapezoid ABCD,

AB = 8cm and CD=14cm

So we have to find the value of AE which is the height of Trapezoid in order to find area.

In ΔAED

$tan\angle 45 =\frac{AE}{ED}$

⇒ $AE=1\times 3$

∴ AE = DE =3cm

$\text{The area of the trapezoid=}\frac{h}{2}\times (a+b)$

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hence, $\text{The area of the trapezoid is }33 units^2$

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2 years ago

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