Twierdzenie talesa
Polecenie: Oblicz pole zaceniowanej figóry. (rysunek w załączniku).
Z Góry dziękuję :* dam naj :)
Z Tw. Talesa wyznaczam a i b
a/6=5/7
7a=6*5/:7
a=30/7
b/6=2/7
7b=12
b=12/7
h=3
P=(a+b)/2 * h
P=(30/7+12/7)/2*3=6:2*3=3*3=9
z tw. Talesa
6 -----------(2+3+2)
a ------------(3+2)
a=6*5/7=30/7
6 -------- 7
b --------- 2
b=6*2/7=12/7
P=(a+b)h/2
P=(30/7+12/7)*3/2= 42/7 *3/2=6*3/2=9
P=9
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Z Tw. Talesa wyznaczam a i b
a/6=5/7
7a=6*5/:7
a=30/7
b/6=2/7
7b=12
b=12/7
h=3
P=(a+b)/2 * h
P=(30/7+12/7)/2*3=6:2*3=3*3=9
z tw. Talesa
6 -----------(2+3+2)
a ------------(3+2)
a=6*5/7=30/7
6 -------- 7
b --------- 2
b=6*2/7=12/7
P=(a+b)h/2
P=(30/7+12/7)*3/2= 42/7 *3/2=6*3/2=9
P=9