HELP!!What is the surface area of this shape?
1 answer:
You might be interested in
Answer:
1. 60%
2a. (the diagram is attached)
b-i. 39
b-ii. 72
b-iii. I dont know...sorry :(
b-iv. 52
Step-by-step explanation:
1. U= 100%
Kano alone = 20-5= 15%
PH alone= 25-5= 20%
Kano n PH = 5%
None of the two= x
15+20+5+x= 100
40+x=100
X= 100-40
X= 60%
Answer: 1. Angle-Side-Angle (ASA) Postulate
2. Corresponding parts of congruent triangles are congruent (CPCTC)
Step-by-step explanation:
Given : ABC is a triangle,
In which, ∠BAC ≅ ∠BCA
To prove : Δ ABC is an isosceles triangle,
Proof:
Construct a perpendicular bisector from point B to Line segment AC,
Label the point of intersection between this perpendicular bisector and Line segment AC as point D
∠BAC ≅ ∠BCA ( Given )
Since, ∠BDA ≅ ∠BDC ( Right angles )
AD ≅ DC (By the definition of a perpendicular bisector. )
Thus, By ASA postulate of congruence,
Δ BAD ≅ Δ BCD
⇒ AB ≅ BC ( By CPCTC )
⇒ ΔABC is isosceles ( by definition of an isosceles triangle )
