Two adjacent figures are represented by the isosceles trapezoid and the square.
What is the difference in the area of these two figures ?
EXAM TOMORROW ! and I dont understand
Hello cookiii
Welcome to Math Help Forum!The interior angles of a regular pentagon are each . So two of the sides, together with a diagonal, form an isosceles triangle whose angles are . Draw the line of symmetry of this triangle, and you'll see that the length of the side of the pentagon is cm (to 2 d.p.)
(If you need an exact answer, that's - which I'll explain if necessary.)
Grandad
thank you so muchh ! but i have another question because i have an exam tomorroww and i don't understand !
Two adjacent figures are represented by the isosceles trapezoid and the square.
What is the difference in the area of these two figures ?
I made it on word document so it would be easier to answer
Hello cookiiiHave a look at the attached diagram. You'll see that I've drawn in the height of the trapezium and marked the lengths of the sides of the right-angled triangle.
Can you see why cm?
Then and . (I'll leave you to work those out.)
The area of the trapezium is and the area of the square is . I hope you can complete the question now.
Grandad