Since base angles of an isosceles triangle are congruent the other base angle is also 65. since the three angles together sum to 180 thst leaves 180-65-65=180-130 = 50 degrees for the vertex angle
Answer:
26.13716694
Step-by-step explanation:
the area of a semi cirlce is 1/2(π*r^2) so it was 14.13716694 and then you find the area of the triangle witch is H*B/2 and then add them 3 numbers together whitch is 6+6+14.13716694=26.13716694
Answer:2
Step-by-step explanation:
All the angles make a full circle which needs to equal 360 degrees.
Add all the angles together to equal 360:
X + (x-10) + (4x-20) +(2x-10) + (x +10) = 360
Combine like terms:
9x -30 = 360
Add 30 to both sides:
9x = 390
Divide both sides by 9:
X = 390/9
X = 43.3333. ( 43 and 1/3)
Answer:
multiplication property
Step-by-step explanation:
it makes sense