Answer:
Ah yes rsm.
Anyways, AB is parallel to DE so 72= angle BDE. So BDE+2x+2x=180
72+4x=180
108=4x
x=27
9514 1404 393
Answer:
yes
Step-by-step explanation:
At each height above the base, the cross section of each cone shown is the same (a circle with the same diameter), so Yes, Cavalieri's Principle applies.
Answer: £90
Step-by-step explanation:
Pip and Sara get some money. They share it in the ratio 5 : 4.
Pip gets £50 so what did Sara get:
Use direct proportion:
5 : 4
50 : x
5x = 200
x = 200/5
x = £40
Pip got £50 and Sara got £40.
Together they got:
= 50 + 40
= £90
Answer:
Yes
Step-by-step explanation:
Statement 1: If JK and LM bisect each other then, they divide each other in 2 equal parts.
So,
JP = PK [Because of statement 1]
MP = PL [Because of statement 1]
∠JPM = ∠LPK [Because they are vertically opposite angles]
So, ΔJPM ≅ to ΔKPL [By SAS congruence criteria of triangle]
