Answer:
Step-by-step explanation:
- <u>CD is angle bisector of angle ACB:</u>
- ∠BCD = ∠ACD = 90°/2 = 45°
- ∠CBD = 45° as ∠CDB = 90°
- CD = BD as triangle CDB is isosceles right triangle
- BC = CD√2 as per property of 45° right triangle
- CD = BC/√2 = 3/√2 = 3√2/2 = 2.12 in
Equation D. can be used to solve y in feet.
Step-by-step explanation:
Step 1:
According to the Pythagorean theorem, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
The hypotenuse is the side opposite the right angle. So the hypotenuse of this given triangle is 12 feet.
The other two sides of the triangle are 4 feet long and y feet long.
Step 2:
Substituting the values we know in the Pythagorean theorem, we get
which can also be written as
This is option D.
Answer:
a=-b
Step-by-step explanation:
Or,
b=-a
Answer:
sorry no idea hhcchuucghhf
Answer:
x = 76°
Step-by-step explanation:
At point I
to get angle JID
angle JID + 107° = 180°. (angle on a straight line)
angle JID = 180° - 107°
angle JID = 73°
for Triangle JiD
angle DJI + 31° + 73° = 180° (Sum of angles in a triangle)
angle DJI = 180 - 104 = 76°
angle FJI = 31 + 73 =104°. ( Sum of two interior angles in a triangle is equal to one exterior angle)
Hence,
x° + 104° = 180° (angle on a straight line)
x = 76°