Answer:
144
Step-by-step explanation:
3! = 1*2*3 = 6
4! = 1*2*3*4 = 24
3!*4! = 6*24= 144
2. Definition of perpendicular lines
3. Given
4. SD and DS are congruent
5. HL theorem
Answer:
x = 113
Step-by-step explanation:
Since the shape is a quadrilateral, the angles add up to 360 so:
x + 87 + 113 + 47 = 360
x + 247 = 360
x = 360 - 247
x = 113
Answer:
where is the paragraph?
Step-by-step explanation:
Set up the equation so m<HCB + m<DCH = m<DCB
2x + 100 + 60 = x + 170
2x+ 160 = x +170
-x -x
x + 160 = 170
- 160 -160
x = 10