Answer:
-8k + 24
Step-by-step explanation:
Is your expression.
Answer:
- B: the area of the triangle GHK plus the area of triangle HIK
Step-by-step explanation:
<u>Connect points H and K and you have two triangles:</u>
<u>The answer options:</u>
statement A:
- the area of triangle GHL plus the area of triangle HIJ
- <u>False</u>. This leaves a gap (HJKL)
statement B:
- the area of the triangle GHK plus the area of triangle HIK
- <u>True</u>
statement C:
- the area of the triangle GJK plus the area of triangle ILK
- <u>False</u>. This leaves a gap and overlap.
statement D:
- the area of triangle GHK plus the area of triangle ILK
- <u>False</u>. This leaves a gap and overlap.
Answer:
243cm^3
Step-by-step explanation:
By Pythagoras' Theorem,
height of the prism ^2 + 5.4^2 = 7.8^2
height of the prism = ±√(7.8^2 -5.4^2) = ±5.6285cm (5s.f.) (rej. - 5.6285 since height > 0cm)
volume of the prism = 1/2 x 5.4 x 5.6285 x 16 = 243cm^3 (3s.f.)
This is a question on mensuration. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)
A polygon is regular when all angles are equal and all sides are equal (otherwise it is "irregular"). This is a regular pentagon (a 5-sided polygon)
Answer:
You can use the equation a^2+b^2=c^2 using this you can find that the value of the 3rd side is 5 hope this helps <3
