We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
0
57
1
avatar+1194 

 

Determine the perimeter of the shape if 1 unit = 1 foot.

A) 8 feet

B) 14 feet

C) 16 feet

D) 20 feet

E) 32 feet

 

 

 

Given that the hypotenuse of this right triangle is 25 cm long and tanΘ = 3.

 

Find the values of x and y, accurate to the nearest tenth.

 

A) x ≈ 7.9; y ≈ 23.7

B) x ≈ 23.7; y ≈ 7.9

C) x ≈ 7.9; y ≈ 26.4

D) x ≈ 26.4; y ≈ 79.1

E) x ≈ 79.1; y ≈ 26.4

 

 

 

Which relationship between the legs and the hypotenuse of the right triangle is correct?

 

A) 15 + 16 = x

B) 15 + x = 16

C) 15^2 + 16^2 = x^2

D) 15^2 + x^2 = 16^2

E) 15 + 16 = x^2

 Oct 18, 2019
 #1
avatar+104911 
+2

First one  =   16 ft

 

Second one

If the tan theta  =  3.....then y  =  3x

So...using the Pythagorean Theorem we haxe that

25  =  sqrt  [x^2 + (3x)^2]     square both sides

625  = x^2 + 9x^2

625  =  10x^2

62.5  = x^2      take the positive root

7.9  =  x

And y = 3x  = 3(7.9)  = 23.7

 

Last one

 

C) 15^2 + 16^2 = x^2

 

 

cool cool cool

 Oct 18, 2019

14 Online Users

avatar
avatar
avatar