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

If the diameter of a circle is half of a yard, then its radius is how many inches?
A car travels at 65 miles per hour. Going through construction, it travels at 3/5 this speed. Write this fraction as a decimal and find the speed
What is the most dense thing in the world
What two numbers has a lcm of 50
how must a projectile be launched in order to maximize its range?
How do I write an equation in slope intercept form from; Slope 3, y-intercept at -4
if the slope of a position versus time graph is downward what kind of motion produced the graph
16.   The main reason self-confidence is important in human relations is because
England won respect from others countries because the Spanish Armada was defeated.Answer True  False
Convert 57 mL to its equivalent in L using dimensional analysis