The volume of a prism is found by : the area of the base which in this exercise is a rectangle • (times) the height.
Area of the base :
3•10=30 m^
The volume of the prism is :
30m^ • 7m = 210 in cubic metres
AB = AC, so this is an isosceles triangle, then angle B=angle C =66⁰.
m∠BAD = m∠CAD, so AD is a bisector.
In an isosceles triangle, bisector is also median and height.
So AD is perpendicular bisector.
So angle x = 90⁰.
In triangle ABC
m∠A+m∠B+m∠C=180⁰
m∠A+66+66=180
m∠A=180-66-66=48⁰
m∠A=48⁰
AD is a bisector of A, so y=m∠A/2=48⁰/2=24⁰
x=90⁰, y=24⁰
Answer is A
Answer:
x= -15
Step-by-step explanation:
9/28 of a cup :)
Pm me with any further questions
