3.
m/_QOR + m/_ROS = 90 (because the two angels together make a right angle)

Substitute.

x + 5 + 2x + 7 = 90

3x + 12 = 90
-12 -12

subtract 12 from both sides

3x = 78

Divide each side by 3 to get x by itself

x = 26

4. those two angles in the picture are vertical, which means they're congruent.

with that in mind...the ray makes a right angle on one and the other, w, you dont know. so to get the whole angle you need to add both angles to get the whole thing so...

m/_w + 90 = 125

subtract 90 on both sides

m/_w = 35

4 0

3 years ago

Clara has a purse in the shape of a trapezoid the top of the purse measures 22 cm while the bottom of the part measures 36 cm if

pashok25 [27]

The height of purse which is in trapezoid shape is 26 cm

Solution:

Clara has a purse in the shape of a trapezoid

The area of trapezoid is given by formula:

$Area = \frac{a+b}{2} \times h$

Where,

"h" is the height

"a" and "b" are the parallel sides length

From given,

Area = 754 cm

a = 22 cm

b = 36 cm

h = ?

Substituting the values in formula,

$754 = \frac{22+36}{2} \times h\\\\754 = \frac{58}{2} \times h\\\\Simplify\ the\ above\ expression\\\\754 = 29h\\\\Divide\ both\ sides\ of\ equation\ by\ 29\\\\h = 26$

Thus height of purse which is in trapezoid shape is 26 cm

8 0

3 years ago

Gina is putting books on a shelf that is 21 2⁄3 inches long. If each book is 2 1⁄3 inch wide, how many books can she fit on the

frosja888 [35]

Gina can fit about 9 books on the shelf

3 0

3 years ago