psylukelx psylukelx
  • 01-04-2021
  • Mathematics
contestada

Given : ABCD is a rectangle
m∠B1DB = 60°, m∠ADB = 45°
DB1=37
Find: Volume

Given ABCD is a rectangle mB1DB 60 mADB 45 DB137 Find Volume class=

Respuesta :

DWRead
DWRead DWRead
  • 01-04-2021

Answer:

Step-by-step explanation:

∠B₁DB = 60°

△B₁BD is a 30°-60°-90° triangle. The sides are in the ratio 1:√3:2

B₁D = 37 ⇒ BD = 37/2 = 18.5

BB₁ = 18.5√3

△ABD is isosceles

AB = AD = BD/√2 = 18.5/√2

volume = AB × AD × BB₁

= (18.5/√2) × (18.5/√2) × 18.5√3

= 18.5³√3/2

≅ 5483 cubic units

Ver imagen DWRead
Answer Link

Otras preguntas

4,650 Rounded to the hunred
what's the answer to 27/3 - 40/8?
round the decimal to the nearest hundredth: 5.6192
Why might some people not have believed Galileo's discoveries?
how do you solve 5s divided by 7=30 and other equations like it
Which of the following statements is a TRUE of America at the end of 1928? A. Americans believed that the good times would never end. B. Black days were over an
which of the following sets does -15 belong to: rational numbers, integers, whole numbers?
Why might some people not have believed Galileo's discoveries?
Which expression is equivalent to this one? –5(6 + 11) A. (–5) • 6 + 11 B. (–5) + 6 + 11 C. (–5) • 6 • 11 D. (–5) • 6 + (–5) • 11
In a Punnett square, a recessive allele is recorded as a upper case letter. lower case letter. number. symbol.