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Zad. 1
h/12 = sin40° |*12
h = sin40°*12
h = 0,6428 * 12
h = 7,7136
lewe ramię - c
prawe ramię c₁
h/c = sin40°
7,7136/c = sin40° |*c
7,7136 = c*sin40° |sin40°
c = 7,7136/sin40°
c = 7,7136/0,6428
c = 12
b/c₁ = cos40°
6/c₁ = cos40° |*c₁
6 = c₁*cos40° |:cos40°
c₁ = 5/cos40°
c₁ = 5/0,6428
c₁ = 7,7784
Zad. 2
a/c = sin30°
a/20 = sin30° |*5
a = sin30° *5
a = 5*0,5000
a = 2,5
a/b = tg60°
2,5/b = tg60° |*b
2,5 = b*tg60° |:tg60°
b = 2,5/tg60°
b = 2,5/1,7321
b = 1,4433
b/y = cos60°
1,4433/y = cos60° |*y
1,4433 = y*cos60° |:cos60°
y = 1,4433/cos60°
y = 1,4433/0,8660
y = 1,6666
a/b+x = tg30°
2,5/1,4433+x = tg30°
2,5/1,4433+x = 5,774 |*(1,4433+x)
2,5 = 1,4433+x
x = 2,5-1,4433
x = 1,0567
Jeśli potrzebujesz to potem dam rysunki i podpisze jak wychodziło.
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Zad. 1
h/12 = sin40° |*12
h = sin40°*12
h = 0,6428 * 12
h = 7,7136
lewe ramię - c
prawe ramię c₁
h/c = sin40°
7,7136/c = sin40° |*c
7,7136 = c*sin40° |sin40°
c = 7,7136/sin40°
c = 7,7136/0,6428
c = 12
b/c₁ = cos40°
6/c₁ = cos40° |*c₁
6 = c₁*cos40° |:cos40°
c₁ = 5/cos40°
c₁ = 5/0,6428
c₁ = 7,7784
Zad. 2
a/c = sin30°
a/20 = sin30° |*5
a = sin30° *5
a = 5*0,5000
a = 2,5
a/b = tg60°
2,5/b = tg60° |*b
2,5 = b*tg60° |:tg60°
b = 2,5/tg60°
b = 2,5/1,7321
b = 1,4433
b/y = cos60°
1,4433/y = cos60° |*y
1,4433 = y*cos60° |:cos60°
y = 1,4433/cos60°
y = 1,4433/0,8660
y = 1,6666
a/b+x = tg30°
2,5/1,4433+x = tg30°
2,5/1,4433+x = 5,774 |*(1,4433+x)
2,5 = 1,4433+x
x = 2,5-1,4433
x = 1,0567
Jeśli potrzebujesz to potem dam rysunki i podpisze jak wychodziło.