The triangle have three sides and draw the sides
Answer:
angle wyx that is angle y is largest as it's the opposite angle to the largest side of a triangle
Answer:
(4w^2+180w+1800) meters^2
Explanation:
(60+2w) x (30+2w)
1800+120w+4w^2+60w
Combine like terms and rearrange into quadratic equation
4w^2+180w+1800
Don't forget to put your units and since we are talking about area be sure to add your squared symbol
Answer:
its c
Step-by-step explanation:
Answer:
Step-by-step explanation:
(a) radius is the bottom leg of the right triangle formed by the slopped edge and the vertical line from the tip to the center of the base. So that's easy enough with the pythagorean theorem.
15^2 + b^2 = 34^2
b = sqrt(1156 - 225)
b = 30.512
(b) The surface area can be looked at as the surface area of the circular base + the surface area of the actual cone.
area of a circle is pi*r^2 and the surface area of the cone, excluding the base, is pi*r*s, where s is the slant height. If you want to know where that one comes from it kinda takes some calculus to understand but I can link a video to explain it.
pi*r^2 + pi*r*s
pi(r^2+rs) I factored out pi to make things a little easier.
pi(931+30.512*34)
1968.408pi Feel free to multiply out pi.
(c) Volume for a cone (or any kind of pyramid) is area of the base times the height all divided by 3.
so since we know the area of the base we can just plug in.
(pi*r^2*h)/3
(pi*931*15)/3
4655pi
