Answer:
B = 22
C = 122
D = 36
Step-by-step explanation:
The angles of a triangle add to 180. Take the measure of each angle add them together. Set them equal to 180.
2x + x + 4 + 7x - 4 = 180
10x = 180
x = 18
To find each angle, substitute x = 18.
Angle B is 18 + 4 = 22
Angle C is 7(18) - 4 = 122
Angle D is 2(18) = 36
Answer:
Determination of HYP,OPP,ADJ with respect to x.
<u>Opposite</u><u> </u><u>side</u><u> </u><u>of</u><u> </u><u>right</u><u> </u><u>angle</u><u>:</u><u>Hypotenuse</u><u>:</u><u> </u><u>AC</u>
<u>Opposite</u><u> </u><u>side</u><u> </u><u>of</u><u> </u><u>given</u><u> </u><u>angle</u><u>:</u><u> </u><u>Opp</u><u>:</u><u>BC</u>
<u>remaining</u><u> </u><u>side</u><u> </u><u>of</u><u> </u><u>a</u><u> </u><u>triangle</u><u>:</u><u> </u><u>Adjacent</u><u>:</u><u>AB</u><u>.</u>
9514 1404 393
Answer:
106.6 cm²
Step-by-step explanation:
The area of a triangle is given by the formula ...
A = 1/2bh
A = 1/2(16.4 cm)(13 cm) = 106.6 cm²
The area of the triangle is 106.6 square centimeters.
Answer:
Step-by-step explanation:
5x - 2(4x - 12) = -7x - 12
Open the bracket
5x - 8x + 24 = -7x - 12
Collect like terms
5x - 8x + 7x = - 12 - 24
4x = -36
x = -36 / 4
x = -9